1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pav-90 [236]
3 years ago
15

There are 35 competitors in a marathon. Sixty percent of these finished the race in under four hrs. How many did not?

Mathematics
1 answer:
Nikitich [7]3 years ago
7 0

Answer:

14 did not finish under 4 hours.

Step-by-step explanation:

Givens

Total number of competitors = 35

% who finish under 4 hours = 60%

Formula

Those who did not = 35 - 60%*35

Solution

Those who did finish under 4 hours = 35 * 60%

Those who did finish under 4 hours = 35*60/100 = 2100/100

Those who did finish under 4 hours = 21

Those who did not = 35 - 35*60/100

Those who did not = 35 - 21

Those who did not = 14

====================

There is another way to do this. Realize that 40% did not finish the race in under 4 hours.

Those who did not finish in under 4 hours = 35*40/100 = 1400 / 100 = 14

You might be interested in
8th grade math please help! 8-10 points
Alisiya [41]
The third one, this is because you take your y2 and y1 values (y2=0 and y1=9 because these are the two y values given to you from each coordinate) and subtract 0-9. then you do the same, but with the x2 and x1 values. so your x1 value is 3 and your x2 value is 0, so you subtract 0 from 3. divide your second answer from the first answer, to get a gradient of -1/3 x. now using the first coordinate (0,9) you know that the y coordinate is 9. as the x value =0, we know that the line is passing through the y axis at 9 so 9 is your y intercept. this gives you the equation -1/3x+9. hope this helped and wasn't too confusing!
8 0
2 years ago
Read 2 more answers
Answer My Question Please!!!<br>Its 20 Points!!
saul85 [17]
Yo yo yo so first u simplify everything as 4^2= 16 and 25 squared is 5 so order of operations make 5*2 and that equals 10 so finally


16-10=6 so the answer is 6


7 0
2 years ago
Read 2 more answers
How does quantitative information differ from qualitative information.
Kobotan [32]
Quantitative data refers to any information that can be quantified, counted or measured, and given a numerical value. Qualitative data is descriptive in nature, expressed in terms of language rather than numerical values.
5 0
2 years ago
In a right triangle one leg measures a quarter of the other, how much do its acute angles measure? with procedure please​
KATRIN_1 [288]

Answer:

The answer to your question is 14° and 76°

Step-by-step explanation:

Data

leg 1 = x

leg 2 = x/4

angle 1 = ?

angle 2 = ?

Process

To solve problem use trigonometric functions. We must use the trigonometric function that relates both legs (tangent).

    tangent Ф = Opposite side / Adjacent side

-Substitution

    tan Ф = (x/4) / x

-Simplification

    tan Ф = x / 4x

    tan Ф = 1/4

-  Find Ф

     Ф = tan⁻¹(1/4) =  14°

- Find the other acute angle

  The sum of the internal angles in a triangles equals 180°

       Ф + Ф₁ + 90° = 180

-Solve for Ф₁

        Ф₁  = 180 - 90 - 14

-Result

        Ф₁ = 76°              

3 0
2 years ago
Question 5 of 5
makvit [3.9K]

Answer:what happened to  c and a

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • Write Bold x as the sum of two​ vectors, one in Span StartSet Bold u 1 comma Bold u 2 comma Bold u 3 EndSet and one in Span Star
    15·1 answer
  • Find the sum of the measures of the interior angles in the figure.
    12·1 answer
  • N. Section 2.2<br> Find the difference. Write the difference in lowest terms.<br> 8 1/3 - 5=
    10·1 answer
  • How many faces does a pyramid with a square base have?<br> A. 7<br> B. 5<br> C. 6<br> D. 8
    5·2 answers
  • Three beads are placed on the vertices of an equilateral triangle of side d = 3.6 cm. The first bead of mass m1 = 130 g is place
    5·1 answer
  • Two coins are in a hat. The coins look alike, but one coin is fair (with probability 1/2 of Heads), while the other coin is bias
    11·1 answer
  • X is a 7 letter word, x is impossible 4 god, new babies like x better than breast milk, the poor have x and the rich look for x
    8·1 answer
  • The goalie on the Iceblades hockey team saves (blocks) 73% of the opponent's shots. With 10 minutes to go, the Iceblades are ahe
    15·2 answers
  • A school has 320 girls and 250 boys.
    14·1 answer
  • ∛≅≅≅≅≅≅≅≅≅≅≅≅≅≅≅≅≅≅<img src="https://tex.z-dn.net/?f=%5Cgeq%20%5Cneq%20%5Cneq%20%5Cneq%20%5Cneq%20%5Cneq" id="TexFormula1" title
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!